Help me choose a drop away.

[VarmintSniper]

Well yesterday I went to the local Gander MT and had one of my friends put on a new string that came with my bow. I watched to guys shooting the new "Switchback" and man those bows are sexy. Very quiet, smooth and accurate.

I went with the Trophy Taker shakey since they had it in stock. I got the camo version and thought it looked good on the bow. I just bought some cheap arrows for the time being. The bow shoots wounderful minus the string is still stretching? How long will it take for the new string not to strectch anymore?